/Engine/Plugins/VirtualProduction/DMX/DMXEngine/Source/DMXRuntime/Public/Library/DMXEntityFixturePatch.h
If Auto Assign Address was set to true, turns off Auto Assign Address.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="DMX|Fixture Patch") void SetStartingChannel ( int32 NewStartingChannel )